If you're looking for the ideal base layer for fall and winter running, look no further. Made from Polartec’s lightweight wool blend, Flyout helps sweat to move up and away, and will keep you cool in warmer temps and warm you up when it's chilly. A classic slim-fit silhouette, the Flyout Wool Long Sleeve features our signature side seam design for a contoured fit and a high low neckline designed to keep you warm. Thumbholes and a watch window round out the extra-special details that come together to build a high-performing, super-comfy style that will go the distance with you.